This fork-based visualization presents a tidy left-to-right tree showing programming languages organized by paradigm (root → paradigm → language → library), with shape encoding depth (★ paradigms, ▲ languages, ● libraries) and color encoding paradigm groups. Built with React and D3.v7, the example uses `d3.hierarchy` to construct the tree and `d3.tree().size()` to compute a tidy layout within an SVG canvas. The data is embedded directly in the script as a static JavaScript object.